package com.helloworld.demo.pool;

import java.util.ArrayList;
import java.util.List;
import java.util.Random;

public class ThreadTest {

    public static void main(String[] args) throws InterruptedException {

        long start = System.currentTimeMillis();

        final Random random = new Random();

        final List<Integer> list = new ArrayList<>();

        for(int i = 0;i < 100000;i++){
            Thread thread = new Thread(() -> {
                list.add(random.nextInt());
            });
            thread.start();
            thread.join();
        }
        long end = System.currentTimeMillis();

        System.out.println("时间" + (end - start) );

        System.out.println("大小" + list.size());

    }
}
